Peroxidase is involved in Pepper yellow mosaic virus resistance in Capsicum baccatum var. pendulum

Pathogenesis-related proteins (PRs) are among the defense mechanisms of plants that work as an important barrier to the development of pathogens. These proteins are classified into 17 families according to their amino acid sequences, serology, and/or biological or enzyme activity. The present study...

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Bibliographic Details
Published in:Genetics and molecular research 2013-04, Vol.12 (2), p.1411-1420
Main Authors: Gonçalves, L S A, Rodrigues, R, Diz, M S S, Robaina, R R, do Amaral Júnior, A T, Carvalho, A O, Gomes, V M
Format: Article
Language:English
Subjects:
Capsicum
Capsicum - enzymology
Capsicum - genetics
Capsicum - virology
Disease Resistance - genetics
Enzyme Activation
Host-Pathogen Interactions
Mosaic Viruses - physiology
Peroxidase - genetics
Peroxidase - metabolism
Plant Diseases - genetics
Plant Diseases - virology
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Summary:Pathogenesis-related proteins (PRs) are among the defense mechanisms of plants that work as an important barrier to the development of pathogens. These proteins are classified into 17 families according to their amino acid sequences, serology, and/or biological or enzyme activity. The present study aimed to identify PRs associated with the pathosystem of Capsicum baccatum var. pendulum: Pepper yellow mosaic virus (PepYMV). Forty-five-day-old plants from accession UENF 1624, previously identified as resistant to PepYMV, were inoculated with the virus. Control and infected leaves were collected for analysis after 24, 48, 72, and 96 h. The inoculated and control plants were grown in cages covered with anti-aphid screens. Proteins were extracted from leaf tissue and the presence of β-1,3-glucanase, chitinase, peroxidase, and lipid transport protein was verified. No difference was observed between the protein pattern of control and infected plants when β-1,3-glucanase, chitinase, and lipid transport protein were compared. However, increased peroxidase expression was observed in infected plants at 48 and 72 h after inoculation, indicating that this PR is involved in the response of resistance to PepYMV in C. baccatum var. pendulum.
ISSN:1676-5680
1676-5680
DOI:10.4238/2013.April.26.3